Some of the advantages associated with InstaSPIN, first of all, it is extremely robust and TI has actually field tested InstaSPIN on about 80 different types of motors all of them, of course, three-phase BLDC motors. In each case, the motor was running in under 30 seconds and it was suitably tuned in under two minutes. Next it is extremely simple; one does not need to be a rocket scientist or a motor control PhD, there is basically only one parameter that needs to adjusted to tune the commutation process. That same parameter that is used to adjust the commutation process can easily be changed on the fly to allow commutation advances at higher speeds. Another advantage is that the designer was actually creating a different signal which has much lower noise characteristics at low speeds than the back-EMF signal does and that is used for commutation. Lastly, the signal is being measured in real time; if the speed changes, it is changing the signal in real time as well, and therefore the designer can adopt to acceleration changes immediately, unlike the back-EMF zero crossing technique.